Răspunsuri

2014-11-02T21:12:39+02:00
5(y-2)+3=38
5y-10+3=38
5y-7=38
5y=38+7
5y=45
y=45/5
y=9

7+2(14+y)=15
7+28+2y=15
35+2y=15
2y=15-35
2y=-20
y=-20/2
y=-10
2014-11-02T21:16:34+02:00
5y-10+3=38«=»5y=51«=»y=51/5 7+28+2y=15«=»2y=-20«=»y=-20/2«=»y=-10